Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/19749

Title: On the measurement of angular vibration displacements: a laser tiltmeter
Authors: Halliwell, Neil A.
Hocknell, Alan
Rothberg, Steve
Issue Date: 1997
Publisher: Elsevier ( © Academic Press)
Citation: HALLIWELL, N.A., HOCKNELL, A. and ROTHBERG, S., 1997. On the measurement of angular vibration displacements: a laser tiltmeter. Journal of Sound and Vibration, 208 (3), pp. 497 - 500.
Abstract: A novel modification and use of the optical geometry which is used as the basis for the Laser Torsional Vibrometer [1] is described. This latter instrument measures the torsional oscillation (or local rotational speed fluctuation) of a rotating component of arbitrary shape and in the presence of solid body vibrations of the component itself. The Laser Torsional Vibrometer relies on the mean speed of rotation of the component to produce a time resolved voltage analogue of the angular velocity. There are many cases of engineering interest however where a component undergoes an angular oscillation about an axis rather than a simple translation or rotation with a unidirectional angular velocity In modal analysis for example where rotational and translation motions are of equal importance the absence of suitable transducers means rotational mobilities are rarely measured [2]. In what follows it is shown how a modification to the optical geometry of the Laser Torsional Vibrometer can produce an instrument which is capable of measuring the local angular or tilt velocity in this situation and will therefore solve this problem.
Description: This article is closed access.
Version: Published
DOI: 10.1006/jsvi.1997.1216
URI: https://dspace.lboro.ac.uk/2134/19749
Publisher Link: http://dx.doi.org/10.1006/jsvi.1997.1216
ISSN: 0022-460X
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.